Patents by Inventor David Michael Leckman

David Michael Leckman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pin vent assembly
    Patent number: 11852152
    Abstract: A fluid transfer pump assembly is provided that includes an electronic device enclosure, a bore, and a vent pin. The electronic device enclosure includes a wall separating an interior from an exterior of the explosion-proof fluid transfer pump assembly. The electronic device enclosure includes a bore extending through the wall of the electronic device enclosure from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly. The bore is formed by at least one peripheral surface extending from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly. The vent pin extends into the bore. The vent pin fills space within the bore and engages the at least one peripheral surface except that at least one portion of a pin surface of the vent pin is spaced apart from at least one portion of the at least one peripheral surface of the bore.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: December 26, 2023
    Assignee: The Gorman-Rupp Company
    Inventors: Craig Louis Cavanaugh, Jacob John Berry, David Michael Leckman, Miles Anthony Ebert
  • Pin Vent Assembly
    Publication number: 20210102544
    Abstract: A fluid transfer pump assembly is provided that includes an electronic device enclosure, a bore, and a vent pin. The electronic device enclosure includes a wall separating an interior from an exterior of the explosion-proof fluid transfer pump assembly. The electronic device enclosure includes a bore extending through the wall of the electronic device enclosure from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly. The bore is formed by at least one peripheral surface extending from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly. The vent pin extends into the bore. The vent pin fills space within the bore and engages the at least one peripheral surface except that at least one portion of a pin surface of the vent pin is spaced apart from at least one portion of the at least one peripheral surface of the bore.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 8, 2021
    Applicant: Tuthill Corporation
    Inventors: Craig Louis Cavanaugh, Jacob John Berry, David Michael Leckman, Miles Anthony Ebert